Jump to ContentJump to Main Navigation
Signatures of the ArtistThe Vital Imperfections That Make Our Universe Habitable$
Users without a subscription are not able to see the full content.

Steven E. Vigdor

Print publication date: 2018

Print ISBN-13: 9780198814825

Published to Oxford Scholarship Online: March 2018

DOI: 10.1093/oso/9780198814825.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 23 June 2021

Water, Water, Here and There

Water, Water, Here and There

Chapter:
(p.85) 4 Water, Water, Here and There
Source:
Signatures of the Artist
Author(s):

Steven E. Vigdor

Publisher:
Oxford University Press
DOI:10.1093/oso/9780198814825.003.0004

Chapter 4 deals with the stability of the proton, hence of hydrogen, and how to reconcile that stability with the baryon number nonconservation (or baryon conservation) needed to establish a matter–antimatter imbalance in the infant universe. Sakharov’s three conditions for establishing a matter–antimatter imbalance are presented. Grand unified theories and experimental searches for proton decay are described. The concept of spontaneous symmetry breaking is introduced in describing the electroweak phase transition in the infant universe. That transition is treated as the potential site for introducing the imbalance between quarks and antiquarks, via either baryogenesis or leptogenesis models. The up–down quark mass difference is presented as essential for providing the stability of hydrogen and of the deuteron, which serves as a crucial stepping stone in stellar hydrogen-burning reactions that generate the energy and elements needed for life. Constraints on quark masses from lattice QCD calculations and violations of chiral symmetry are discussed.

Keywords:   baryon conservation, proton decay, grand unified theory, spontaneous symmetry breaking, electroweak phase transition, baryogenesis, leptogenesis, up–down quark mass difference, lattice QCD, hydrogen burning

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .